Clock,申请号US19270222258-传众专利搜索

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发明名称	Clock
摘要
申请公布号	US1821066(A)	申请公布日期	1931.09.01
申请号	US19270222258	申请日期	1927.09.27
申请人	MARMORSTEIN HERMAN I	发明人	MARMORSTEIN HERMAN I.
分类号	G04B19/20	主分类号	G04B19/20
代理机构		代理人
主权项
地址

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